DS EN 4323:2005 Aerospace Series - Screws, 100 Degree Countersunk Head, Six Lobe Recess, Threaded To Head, In Titanium Alloy Ti-P64001, Anodized, Mos[2] Coated - Classification: 900 Mpa (At Ambient Temperature)/350 Degree C Defines the characteristics of screws with 100 degree countersunk head with six lobe recess, threaded to head, in TI-P64001, anodized, MoS[2] coated, for aerospace applications.